Spring-motor for fans



(No Model.)

2 Sheets--Shee.t 1.

G. W. HOUSTON.

mum} MOTOR FOR FANS.

No. 390,369. Patented Oct. 2, v1888.

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G. W. HOUSTON.

SPRING MOTOR FOR PAN-S.

No. 390,369. 'PatentedDQt. 2, 1888.

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GEORGE WEBSTER HOUSTON, OF SAVOY, ASSIGNOB OF ONE-HALF TO S. LA FAYETTE EASLEY, OF FORT WORTH, TEXAS.

SPRING-MOTOR FOR FANS.

SPECIFICATION forming part of Letters Patent No. 390,369, dated October 2, 1888.

Application filed March 12, 1888. Serial No. 266,982. (No model.)

To all whom it may concern.-

Be it know u that I, GEORGE Wnnsrnn Hous TON, a citizen of the United States, residing at Savoy, in the county of Fanniu and State of Texas, have invented certain new and useful Improvements in Spring-Motors for Fans; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

This invention relates to a device for operating a fan or other object to which it is desirable to give a continuous reciprocating motion; and it consists in the novel construction and combination of the parts, hereinafter fully described and claimed.

In'the drawings, Figure 1 is a side view of the complete device. Fig. 2 is a rear view of the lower portion of the same. Fig. 3 is also a rear view of the motor, drawn to a larger scale.

Portions of the casing are shown broken away in all the views to display the mechanism within.

A is the casing, which incloses the spring and toothed wheels, and B is a stand. provided with wheels b, so that the whole apparatus may be moved about to different parts of a room with facility.

0 is an upright secured to the case A and provided with the long slot 0.

D are side pieces, and (Z are thumb-screws, which pass through them and through the slot 0, so that the height of the fan can easily be regulated.

Eis the top piece, secured to the side pieces, D, and c are inclined braces, which also support the top piece.

F is the fan, andf is the fan-lever, pivotally connected at its top end to the top piece, E.

G is a revolving shaft provided with the crank g and journaled in the case A.

H is a bell-crank lever, provided with a weight, h, for balancing the crank and connecting-rod.

I is the connecting-rod for the crank, provided with the joint i, so that its length may be varied to suit the height of the fan, and J is arod which connects the fan-lever with the top arm of the bell-crank lever.

The shaft G is revolved by means of the spring 'K, secured upon shaft k, which is also journaled in the case A.

L are intermediate toothed wheels, which communicate the motion ofshaft 7.: to shaft G, and which are so proportioned as to give mo tion to the fan.

M is the fiy-wheel, secured upon the shaft G.

N is a brake pivoted on the pin a, which projects from the case A, and bearing against the said fly-wheel.

O are hooks upon the brake, and P is a spring, one end of which is secured to one of the said hooks. This spring is formed ofiudiarubber cord; but springs of other materialas, forinstance, a helical wire coilniay also be used. The other end of the spring P is wound upon the shaft 7.: by the action of wind ing up the mainspring K.

R are small pulleys over which the springP passes, and which are supported by the case A at suitable points for the guidance of the said spring.

The spring K has its outer endvsccured to the casing by the bracket m, and its inuerend is secured to the shaft It. A square portion, It, is formed upon the end of shaft k for the winding-up handle. it is a ratchet on shaft k, and h is a pawl which prevents the spring from unwinding when not required, the said pawl being pivoted to the case and engaging with the ratchet, as in ordinary clock-workwinding mechanism. The intermediate gearing, L, may be variously proportioned and varied to adapt it to the size and strength of the maiuspring employed, and upon which the length of time for which the motor will run willnecessarily also depend. The gearing L (shown in the drawings) consists of a wheel, Z, secured on the springshaft and gearing into a pinion, 2, on shaft 3 behind the spring-shaft. A wheel, 4:, is also secured on shaft 3 and gears into a pinion, 5, upon shaft 6. A wheel, 7, is also secured upon shaft 6 and gears into the pinion 8, which is secured upon the crankshaft.

When the mainspring is fully wound up, the spring l causes the brake to bear hard against the fly-wheel and the motion of the fan is re tarded, the exact adjustment of speed being regulated by attaching the end of spring P to whichever hook permits the best result to beobtained. Asthemainspringrunsdownthe spring P is unwound, so that the brake does not bear so hard against the fly-wheel, and the fan therefore operates with a substantially uni form motion all the time it is in operation.

It is obvious that the motion of the leverf might be used to rock a cradle or operate any light mechanism which required a substantially-uniform reciprocating motion. I do not therefore confine myself to the use of the above-described mechanism in connection with a fan.

\Vhat I claim is-- Is 1. The combination of the continuously-revolving crank-shaft, the fiy-wheelon the crankshaft, the mainspring, the revolving shaft connected to the mainspring, intermediate toothed wheels connecting the spring-shaft with the crank-shaft, the pivoted brake pressing on the flywheel, and a spring connected to the said brake and wound upon the said mainspringshaft, whereby the crank-shaft may receive a substantially-uniform motion.

2. The combination of the revolving crankshaft, the fly-wheel secured thereupon, the mainspring, the mainspring-shaft, intermedi ate toothed wheels connecting said shafts, the pivoted brake pressing on the fly-wheel, a series of hooks on the brake for the attacho ment of the compensating spring, the guidepulleys, and the compensating spring of indiarubber cord passing over the said pulleys and wound upon the mainspring-shaft, so that the crank-shaft may have a substantially-uniform 5 motion.

In testimony whereof I afiix my signature in presence of two witnesses.

GEORGE \VEBSTER HOUSTON.

WVit-nesses:

JAMEs A. MAsoN, JOHN DEATHERAGE. 

